Pickering Interfaces US Inc. Reed Relay, Spst-No, 3V, Tht; Contact Configuration Pickering 120-1-A-3/2

The 120-1-A-3/2 is a single-pole, normally open reed relay in the Series 120, designed for high-density switching applications such as A.T.E. systems. It uses a low-level sputtered ruthenium contact rated for 10 W at 200 V and 0.5 A, with a 3 V nominal coil voltage and 200 Ω coil resistance. The relay features a plastic package with internal mu-metal magnetic shielding, an insulation resistance greater than 10¹² Ω, and a 2 mm pin pitch on a 4 mm x 4 mm board footprint. It operates from -20 °C to +85 °C, supports 50 g shock and 20 g vibration, and has a typical switch life of 10⁹ operations under low-level loads. The package does not include an internal diode, requiring external back EMF suppression if necessary.